Home / 278,819,269.60-418,228,904.40-97,006,021.60

Finding the Fourth Proportional to 278,819,269.60, 418,228,904.40 and 97,006,021.60

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Solution

The fourth proportional to 278,819,269.60, 418,228,904.40 and 97,006,021.60 is: 145,509,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,819,269.60 : 418,228,904.40 = 97,006,021.60 : x
  2. Step 2: Convert to fraction form
    278,819,269.60/418,228,904.40 = 97,006,021.60/x
  3. Step 3: Cross multiply
    278,819,269.60x = 418,228,904.40 × 97,006,021.60
  4. Step 4: Simplify right side
    278,819,269.60x = 40,570,722,133,970,728
  5. Step 5: Solve for x
    x = 40,570,722,133,970,728/278,819,269.60
  6. Step 6: Final answer
    x = 145,509,032.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.